hourn. 小時、鐘頭、時間、…點鐘、課時學術名詞時:天文學、核能、電力工程、海事小時:電機工程、資訊、機械工程英文釋義a period of time equal to 1/24th of a dayclock timea special and memorable perioddistance measured by the time taken to cover it